Mobile power supply trailer apparatus

ABSTRACT

A mobile power supply housed within a wheeled trailer which can be towed to various locations, particularly remote locations, for providing electrical power as needed for operating equipment or for charging of batteries or other electrical supply devices at such remote locations. The apparatus includes a unique trailer design including venting means for preventing the accumulation of hydrogen normally associated with high power battery operation, particularly charging thereof and therewith, by monitoring hydrogen at all times within the trailer interior and selectively passively and actively venting the interior environment when hydrogen levels are high or whenever necessary. A unique roof design is included for gathering hydrogen near the upper portion of the interior roof construction adjacent to a venting outlet to facilitate expelling thereof.

The present utility application hereby formally claims priority of U.S.Provisional Patent application No. 61/631,740 filed Jan. 10, 2012 on“MOBILE POWER SUPPLY APPARATUS” filed by the same inventor listedherein, namely, William A. Hindle, and assigned to the same assignee,namely, HindlePower, Inc, and said referenced provisional application ishereby formally incorporated by reference as an integral part of thepresent application.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention deals with the field of power supplies and, inparticular, large mobile power supplies which can provide a significantamount of electrical power at remote locations wherein such high levelsof electrical power are not normally or commonly available. The powersupply is housed within a wheeled trailer which can be towed to remotelocations for use as needed. Unique circuitry is provided which includeselectrical controls for monitoring operation of the power supplyincluding monitoring the accumulation of hydrogen within the interiortrailer environment as well as monitoring the power supply parametersfrom the exterior of the trailer housing using externally viewablecontrol screens.

2. Background of the Invention

In the prior art control systems have been designed for monitoring andcontrolling mobile power supply means which have been patented such asshown in U.S. Pat. No. 2,056,525 patented Oct. 6, 1936 to S. Johnson Jr.et al on a “Trailer Vehicle”; and U.S. Pat. No. 2,649,565 patented Aug.18, 1953 to D. G. Ihrig on a “Battery Charging Control Responsive To GasPressure”; and U.S. Pat. No. 3,090,871 patented May 21, 1963 to C. F.Gorman on a “Battery Charging System”; and U.S. Pat. No. 3,209,675patented Oct. 5, 1965 to R. H. Stimpson et al on an “Apparatus ForSterile Transportation Of Perishable Liquids”; and U.S. Pat. No.3,489,320 patented Jan. 13, 1970 to I. A. MacKinnon on a “Device ForSpreading Liquid Manure”; and U.S. Pat. No. 3,625,137 patented Dec. 7,1971 to W. Johnson et al and assigned to Up-Right, Inc. on a “TankTrailer”; and U.S. Pat. No. 4,337,875 patented Jul. 6, 1982 to D. Lyonsand assigned to Atwood Vacuum Machine Company on an “Overflow And VentCap For A Container”; and U.S. Pat. No. 5,042,883 patented Aug. 27, 1991to D. J. McCann et al and assigned to Lucas Industries public limitedcompany on a “Trailer Braking System For A Towing Vehicle”; and U.S.Pat. No. 5,963,013 patented Oct. 5, 1999 to J. L. Watson et al on a“Storage Battery Charging Apparatus And Methods”; and U.S. Pat. No.6,755,225 patented Jun. 29, 2004 to A. Niedwiecki et al and assigned toQuantum Fuel Systems Technologies Worldwide, Inc. on a “TransportableHydrogen Refueling Station”; and U.S. Pat. No. 7,683,585 patented Mar.23, 2010 to B. Johnson and assigned to Yazaki North America, Inc. on“Trailer Battery Charge Systems And Methods”; and U.S. Pat. No.7,846,570 patented Dec. 7, 2010 to M. Diehl et al and assigned to TheGillette Company on “Venting Water-Tight Battery-Operated Devices”; andU.S. Publication No. 2000010/0295514 published Nov. 25, 2010 to G.Burlak et al and assigned to STMicroelectronics, Inc. on a “Trailer TowMethod For Controlling Charging”; and U.S. Publication No. 2010/0297883published Nov. 25, 2010 to G. Burlak et al and assigned toSTMicroelectronics, Inc. on a “Trailer Tow Preserving Battery ChargeCircuit”.

SUMMARY OF THE INVENTION

The mobile supply trailer apparatus of the present invention is designedto be attachable for transfer to a powered vehicle such as a truck orother tall vehicle. The apparatus includes a trailer chassis assemblyincluding a trailer frame and a trailer hitch assembly mounted to thetrailer frame and adapted to be attached to a powered vehicle such as atruck or the like for facilitating transport thereof. A plurality ofwheels are movably mounted to the trailer frame and extends therebelowto facilitate this transport movement.

The apparatus further includes a trailer housing including a trailerfloor mounted on the trailer frame and a plurality of trailer walls,preferably a front wall, left wall, right wall and rear wall whichextend generally upwardly from the trailer floor. A trailer door openingis defined in the trailer walls and especially defined in the rear walland includes doors movable extending thereover preferably. A trailerroof is included extending between the individual trailer walls at aposition above the trailer floor to define therebetween an interiorchamber. Also an uppermost chamber area is defined in the uppermost areaof the interior chamber for the purpose of facilitating the gathering ofhydrogen gases therein which are lighter than air.

A door assembly is preferably attached to the trailer walls and isselectively positionable between a closed position and an openedposition to facilitate access to the interior chamber through thetrailer door opening. A plurality of electrical power supplies arepositioned within the interior chamber for the purpose of supplyingelectrical power at remote locations when the trailer is moved to suchlocations. These electrical power supplies can give off hydrogen gaswhich the construction of the present invention is designed specificallyto accumulate and expel from the interior chamber of the housing.

A permanent ventilation opening is defined in the trailer housing andpreferably in the front wall thereof to facilitate movement of ambientair from the external ambient environment into the internal chamber. Atleast one passive vent is located preferably in the trailer roof area tocontinuously allow fluid flow from within the interior chamber to exitinto the external ambient environment. A hydrogen gas sensing device ispositioned within the interior chamber for sensing the concentration ofhydrogen gas by volume within the interior chamber. This hydrogen gassensing means is preferably operative to generate an emergency exhaustsignal responsive to sensing a predetermined concentration of hydrogenwithin the interior chamber.

A hydrogen gas ventilation assembly is included for selectivelyexhausting of hydrogen gases from the interior chamber into the externalambient environment. This hydrogen gas ventilation assembly isresponsive to receiving an emergency exhausting signal from the hydrogengas sensing device to activate and exhaust hydrogen gases from theinterior chamber into the exterior ambient environment. At least onecharging status display and control panel is electrically connected tothe electrical power supply for monitoring the status and forcontrolling operations thereof. The charging status display panels aremounted in the trailer walls and are positioned such as to be viewableas well as controllable by a user positioned outside of the trailerwall.

It is an object of the present invention to provide a mobile powersupply apparatus wherein all of the power supply equipment necessary toprovide power at remote locations is housed within a movable trailerhousing which includes wheels.

It is an object of the present invention to provide a mobile powersupply apparatus wherein mobility to remote location is enhanced bypositioning the power supply apparatus within a trailer housing whichcan be attached to a vehicle and transported to a remote location forproviding power or for any purpose including, but not limited to,charging of remotely located batteries.

It is an object of the present invention to provide a mobile powersupply apparatus wherein the level of hydrogen within the interior ofthe trailer housing can be continuously monitored during operation toprevent excess accumulation of hydrogen.

It is an object of the present invention to provide a mobile powersupply apparatus wherein hydrogen monitoring apparatus is included whichis operative to activate a ceiling mounted exhaust fan when the level ofhydrogen within the trailer housing reaches a level of 1% by volume,and, possibly, also generate an alarm signal.

It is an object of the present invention to provide a mobile powersupply apparatus wherein the control apparatus is in electricalcommunication with a hydrogen sensing device to be operative to causeinstantaneous termination of operation of the power supply apparatus ifthe hydrogen content within the interior environment of the trailerhousing reaches a level of 2% or greater by volume.

It is an object of the present invention to provide a mobile powersupply apparatus wherein a uniquely designed roof construction isincluded with contoured panels to enhance accumulation of hydrogen inthe upper portion of the interior of the trailer in order enhanceexhausting thereof.

It is an object of the present invention to provide a mobile powersupply apparatus wherein passive venting is included for continuousmonitoring and periodic ventilating of the interior of the trailercompartment which includes outlets located in the roof area andpermanent ventilation openings or cutouts located in the lower portionof the trailer housing for maintaining desired ventilation.

It is an object of the present invention to provide a mobile powersupply apparatus wherein at least one or more air vents are provided inthe side walls of the trailer housing which can be selectivelymaintained closed and/or opened at any time including during times whenpower is being supply by the power supply members to facilitate themovement of excessively accumulated hydrogen from of the interior of thetrailer housing through the passive vents located in the trailer roofand optionally through the ventilation opening in the roof area with anexhaust fan location therein.

It is an object of the present invention to provide a mobile powersupply apparatus wherein a ventilation fan can be included adjacent tothe ventilation opening to enhance the exhausting and exiting ofhydrogen and/or other gases outwardly therefrom.

It is an object of the present invention to provide a mobile powersupply apparatus wherein a uniquely contoured ceiling is included withmultiple angularly oriented panels for facilitating the gathering ofhydrogen in the upper portion of the interior of the trailer housingimmediately adjacent to the passive vents and the ventilation opening tofacilitating selective high speed exhausting thereof.

It is an object of the present invention to provide a mobile powersupply apparatus wherein a main circuit breaker provides a means toinstantaneously terminate or activate all power generation within thepower supply.

It is an object of the present invention to provide a mobile powersupply apparatus wherein a manually operated ceiling fan control switchis provided to facilitate powering of operation of the ventilation fanlocated in the ventilation housing adjacent to the ventilation openingin the trailer roof to facilitate ventilation of the interior portion ofthe trailer to prevent accumulation of high levels of hydrogen withinthe interior trailer environment.

It is an object of the present invention to provide a mobile powersupply apparatus wherein the operation of all of the various parametersand characteristics of the power supply can be monitored by monitoringpower supplying display panels and charging operation display panelspositioned in the walls of the charging station which face outwardly inorder to be viewable from the exterior environment surrounding theoutside of the trailer housing.

It is an object of the present invention to provide a mobile powersupply apparatus wherein multiple banks of batteries can be included forproviding a significant amount of electrical power at remote locationswhenever needed.

It is an object of the present invention to provide a mobile powersupply apparatus wherein the exterior trailer roof includes a hip roofshaped construction to facilitate gas venting therefrom.

It is an object of the present invention to provide a mobile powersupply apparatus wherein various safety devices can be included forprotection of users and protection of the mobile power supply apparatussuch as an eye wash station or fire extinguishers.

It is an object of the present invention to provide a mobile powersupply apparatus wherein interior lights are provided as need forinterior maintenance thereof.

It is an object of the present invention to provide a mobile powersupply apparatus wherein unique circuitry is provided for controllingthe supplying of power to a remote location and the recharging of thepower supplies located thereof at any location whether remote or not.

BRIEF DESCRIPTION OF THE DRAWINGS

While the invention is particularly pointed out and distinctly describedherein, a preferred embodiment is set forth in the following detaileddescription which may be best understood when read in connection withthe accompanying drawings, in which:

FIG. 1 is a perspective illustration showing a front three-quarter viewof the exterior of the mobile power supply apparatus of an embodiment ofthe present invention viewed from the right front direction;

FIG. 2 is a rear plan view of an embodiment of the apparatus shown inFIG. 1 with the rear doors positioned in the opened position;

FIG. 3 is a rear perspective illustration of the embodiment shown inFIG. 2 taken from the right back;

FIG. 4 is a top plan view of the embodiment shown in FIG. 1;

FIG. 5 is a right side plan view of the embodiment shown in FIG. 1;

FIG. 6 is a front plan view of the embodiment shown in FIG. 1;

FIG. 7 is a rear plan view of the embodiment shown in FIG. 1 with therear doors shown in the closed position;

FIG. 8 is a perspective illustration of an embodiment of the mobilepower supply apparatus of the present invention showing the apparatuswith the roof, left side and rear doors removed to facilitate viewing ofthe internal components thereof;

FIG. 9 is a perspective illustration of an embodiment of the chassisconstruction of the present invention showing the battery packs andcable reels mounted upon the trailer chassis;

FIG. 10 is a perspective exploded view of an embodiment of the roofconstruction of the mobile power supply apparatus of the presentinvention showing the passive vents in the roof and the ceiling blowerconstruction;

FIG. 11 is a side plan view of the exploded view of the roof shown inFIG. 10;

FIG. 12 is a rear plan view showing the positioning of the battery banksand including a schematic illustration of the path of movement of gasessuch as hydrogen and the like generated by the battery banks duringoperation of the mobile power supply apparatus of the present inventionas it is gathered by the unique roof construction for exhausting fromthe trailer housing interior; and

FIG. 13 is a schematic illustration of the operative controls for themobile power supply apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention discloses a mobile power supply apparatus housedwithin a portable trailer 8 to facilitate movement thereof to remotelocations for providing power for various purposes including chargingbatteries at remote locations. The apparatus includes a trailer housing10 with trailer wheels 12 and a trailer hitch assembly 14 to facilitatemovement of the trailer by towing by a powered vehicle such as a truck.The construction of the trailer housing 10 includes a front wall 16,along with a left side wall 18 and a right side wall 20 and a rear wallassembly 17 defining a rear door opening therein with rear doors 22 and24 selectively extending thereover in a closed position and movable toan opened position to facilitate entry and exit by a user into theinterior chamber 48. The left rear door 22 is pivotally secured withrespect to the left side wall 18, and the right rear door 24 ispivotally secured with respect to the right side wall 20 to facilitateaccess to the interior chamber 48 of the trailer housing 10 as needed. Atrailer chassis 26 includes a trailer frame 25 which supports thetrailer housing 10 and all portions thereof and defines a trailer floor27 on the upper surface thereof. The trailer roof 32 extends across theupper portion of the trailer side walls 18 and 20 and the front wall 16and the rear doors 22 and 24.

Battery banks 34 are included within the interior chamber 48 of thetrailer housing 10. Such battery banks commonly generate gaseoushydrogen when providing electrical power and during charging thereof,and this hydrogen gas needs to be vented from the interior chamber 48 ofthe trailer housing 10 to prevent various obvious dangers.

For this purpose, continuous venting of the interior chamber 48 of thetrailer housing 10 is provided by a permanent ventilation opening or cutout 44 shown in this embodiment defined in the front wall 16. It shouldbe appreciated that this permanent ventilation opening 44 can be definedanywhere in the trailer housing 10, but preferably is located in thelower portion thereof near the battery banks 34 to facilitate continuousventing thereadjacent and to enhance continuous ventilation when thetrailer housing 10 is being transported due to the increased airflowtherethrough due to the normal movement of the trailer housing 10 in theforward direction. The trailer roof 32 will define passive vents 36which are continuously open and are preferably defined in the upperportion of the roof area to facilitate continuous venting of theinterior of the trailer housing 10. Since hydrogen gas is lighter thanair, the exhausting of this unwanted gas is at least partially achievedby this passive venting system. As such, a small amount of air willcontinuously enter the permanent ventilation opening or openings 44,especially while the trailer 8 is being transported, to allow venting ofthe interior environment of the trailer housing 10 by movement of thisair and the hydrogen gas upwardly to exit through the passive vents 36which will be continuously open, preferably. It should be appreciatedthat the passive vents 36 can be of any of a variety of differentconstructions such as the vertical opening shown in FIG. 1, or they canbe configured as inverted J-shaped or snorkel-shaped conduits 37 asshown in FIG. 12. The use of the snorkel design 37 will aid inpreventing of unwanted items from passing from the exterior into theinterior of the trailer housing 10 such as water or ice fromprecipitation or other unwanted external contaminants.

Ventilation is provided by the permanent vent opening 44 and the passivevents 36 are sufficient for exhaust the unwanted gases such as hydrogenunder some operating circumstances. However, when heavy duty operationof the mobile power supply apparatus is occurring, it will be necessaryto provide enhanced ventilation to prevent the accumulation of hydrogenwithin the interior environment of trailer housing 10. For this purposea ceiling fan construction will be included positioned within thetrailer roof 32. The trailer roof 32 will define a ventilation opening40 therewithin with a ventilation housing 42 in direct fluid flowcommunication preferably mount with respect to the ventilation opening40. A hydrogen gas ventilation assembly 39 will include a ventilationfan 38 will be positioned within the ventilation housing 42 and will beselectively operable to provide exhausting of the ambient environmentwithin the trailer housing 10. The gas hydrogen is lighter than air andtherefore will tend to travel upwardly and the heavier air willgravitate downwardly. The accumulation of gases within the areaimmediately below the trailer roof 32 is an important aspect of thepresent invention. The shape of the interior panels of the ceilingwithin the trailer housing 10 will tend to accumulate this air at aposition adjacent to the ventilation opening 40 and adjacent to thepassive vents 36 to facilitate exhausting of the hydrogen from theinternal environment to a lower safer level as a percentage by volume ofthe entire interior chamber 48.

Movement of air through the ventilation opening 40 powered by theventilation fan 38 will be enhanced by providing of one or more airvents 28 in the lower portion of the trailer housing 10. The embodimentshown in the drawings of the present application disclose specificallytwo air vents 28. One is located in the right side wall 20 and one islocated in the left side wall 18. However, it should be appreciated thatany number of air vents 28 could be included. These air vents 28 allowthe flow of a significant amount of additional air into the interiorchamber 48 of the trailer housing 10 at a position adjacent to batterybanks 34 for the purpose of enhancing the flow of hydrogen generated bybattery banks 34 upwardly toward the passive vents 36 and theventilation opening 40. Control of the flow of gas through vents 28needs to be controlled. Thus, it is important that each of the vents 28be capable of being closed and/or opened as needed. Thus a separate airvent cover 30 will be position adjacent to each vent 28 for selectivelybeing positioned extending thereover for closing thereof as needed. Byallowing the flow of a large volume of ambient air into the interiorchamber 48 of the trailer housing 10 through the air vents 28, theapparatus of the present invention insures effective venting of unwantedgases such as hydrogen especially during operation of the ventilationfan 38.

One of the important aspects of the present invention is the inclusionof a hydrogen sensing device 46 preferably positioned within theinterior chamber 48 of the trailer housing near the trailer roof 32 formonitoring the level of hydrogen within the ambient internal environmentof the trailer housing 10 at this location high within the internal areaof the trailer housing 10 where the hydrogen will tend to accumulate.Thus, this sensing device 46 will be positioned to sense the highestlevels of hydrogen within the interior chamber 48. The hydrogen sensingdevice 46 is, preferably, electrically wired to ventilation fan 38 insuch a manner as to render it operative for exhausting of the upperportion of the interior chamber 48 whenever the percentage of hydrogensensed by the hydrogen sensing device 46 reaches a certain predefinedlevel which is normally approximately 1% by volume. The hydrogen sensingdevice 46 is also electrically connected to an alarm means in order togenerate an alarm signal to indicate that a 1% level by volume orgreater of hydrogen within chamber 48 has been achieved. It can also beoperative to indicate that activation of the exhaust ventilation fan 38has been started which acts as a warning, particularly when a higherconcentration of hydrogen is present in chamber 48. It is possible thatthe hydrogen sensing device 46 can generate an alarm signal that couldbe audible and/or visible when the level of hydrogen reaches 1% byvolume in chamber 48.

The hydrogen sensing device 46 can also operatively connectedelectrically with respect to the power source for the mobile powersupply apparatus to instantly terminate all power supplied theretoresponsive to a level of hydrogen sensed by device 46 reaching apredetermined level which commonly would be approximately 2%. Thus if a2% by volume concentration of hydrogen gas is sensed by the hydrogensensing means 46, all power for operation of the mobile power supplywill immediately be terminated in order to prevent any furthergeneration of hydrogen until the concentration level thereof withinchamber 48 in reduced to non-hazardous levels. Hydrogen is extremelydangerous at concentrations greater of approximately 4% and can behighly explosive when reaching concentration levels of 8% to 10%.

The construction of the trailer roof 32 can include multiple panelsincluding a front hip roof side panel 50 and a rear hip roof side panel52 which define at the upper edges thereof the hip roof contour. A rightinclined roof panel 54 will be positioned extending upwardly andinwardly from the right side wall 20, and a left inclined roof panel 56will be positioned inclined inwardly and upwardly from the left sidewall 18. A central flat roof panel 58 will extend from the upper inwardedges of roof panels 54 and 56. Preferably, the passive vent or vents 36will be defined in the central flat roof panel 58, as well as theventilation opening 40. The central flat roof panel 58 will extendapproximately horizontally and will define the uppermost chamber area 94of the interior chamber 48 of the trailer housing 10 which, thusly, willtend to gather and accumulate hydrogen therein in order to facilitatethe venting of hydrogen since hydrogen is lighter than ambient air.

Multiple battery chargers 60 are included in the apparatus of thepresent invention which can be electrically operative for recharging thebattery power packs or for charging of external batteries as needed.

A plurality of charging status display panels 61 can be defined in thewalls of the trailer housing 10, and in this embodiment are shownpositioned in the left side wall 18 and the right side wall 20. Thesecharging status display panels 61 are positioned in the walls of thetrailer housing 10 in such a manner to be viewable by a user locatedoutside of the trailer 8 to provide information on the current status ofoperation of the mobile power supply apparatus of the present inventionwithout requiring opening of the trailer doors 22 and 24. Interiorlights 62 can be provided for lighting the internal portion of thetrailer housing 10 as needed. Other emergency and safety devices can beincluded mounted on the interior walls of the trailer housing 10 such asan eyewash station 68 and/or one or more fire extinguishers 70. Agenerator housing 64 with a generator 63 mounted therewithin can bemounted in front of the front trailer wall 16 and behind the trailerhitch assembly 14 in order to provide an electrical power by agas-powered electrical generator as needed for various purposes. Asignificant portion of the electrical circuitry of the present inventionis provided within an electrical controller or control box 72 in orderto monitor and control operation of various aspects of the chargingapparatus such as the lights, fan and heater controls. An interiorheater 66 such as a baseboard heating means can also be provided forcomfort or for maintaining proper operation of the electrical apparatusas needed. An electrical input power means 74 is provided shown in thecircuit diagram of FIG. 13, as well as a roof fan power switch andthermostat 76 which can be controlled such as to cause the roof orventilation fan 38 to initiate operation responsive to excessively warmconditions within the ambient environment inside of the trailer housing10. The main circuit breaker 78 can be provided for initiating orterminating the power to operation of all circuitry within the mobilepower supply apparatus.

A manual ceiling fan activation control switch 80 as shown in thecircuit diagram of FIG. 13 can be operative to initiate operation of theceiling fan manually by an operator as need be in case activation ofthis fan is required when there is not a significant accumulation ofhydrogen within the interior of the trailer housing 10 such as to expelan excessive amount of warm air from the chamber 48. Interior lightcontrol switch 82 is also included for selectively providing power tothe interior lights 62.

An important aspect of the present invention is the specific contour ofthe uppermost chamber area 94 within interior chamber 48 of trailerhousing 10. In particular, the contour defined in the ceiling is definedby the positioning and orientation of the plurality of roof panels, leftinclined roof panel 56, right inclined roof panel 54 and central flatroof panel 58 in combination with the front hip roof side panel 50 andthe rear hip roof side panel 52.

One configuration which has been shown to be particularly effective isaccumulation hydrogen within the uppermost chamber area is shown in FIG.12 which shows an interior ceiling assembly including a lower leftinterior ceiling panel 84 extending upwardly from the interior portionof the left side wall 18 and inclined upwardly and inwardly to initiategathering of the hydrogen toward the vents 36 and 42. This shape willallow the lower left interior ceiling panel 84 to provide the initialstage for accumulation of the hydrogen for exhausting thereof upwardly.An upper left interior ceiling panel 86 will extend upwardly from theupper edge of the lower left interior ceiling panel 84 and will have agreater angular inclination than panel 84 for further guiding of thehydrogen upwardly toward the vents. The left interior ceiling panel 86will extend completely from the upper innermost edge of first lower leftinterior ceiling panel 84 to the upper flat interior ceiling panel 91which is approximately horizontal and is positioned immediately belowthe central flat roof panel 58. It should be appreciated that it ispreferable that all of the passive vents 36 and the ventilation opening40 will all be defined in both the central flat roof panel 58 and in theupper interior ceiling panel 91 such that full fluid flow communicationis provided for gases to exist upwardly from the interior chamber 48.Upper interior ceiling panel 91 will define the uppermost portion of theceiling such that collection of hydrogen or other unwanted gases will bemaximized.

On the opposite side of the uppermost chamber area 94 of trailer 8 alower right interior ceiling panel 88 will extend upwardly from theinterior upper portion of the right side wall 20 and will be inclinedupwardly and inwardly therefrom. An upper right interior ceiling panel90 will be inclined greater than the lower right interior ceiling panel88 and will extend from the uppermost edge of lower right interior panel88 to the right side of the upper interior ceiling panel 91. As such,the flow of hydrogen will be guided by this construction of the interiorceiling panels 84, 86, 88 and 90 along the hydrogen flow lines 92defined in FIG. 12 to enhance movement of hydrogen and/or other unwantedgases to a location immediately adjacent to the upper interior ceilingpanel 91 to facilitate exhausting thereof upwardly through the passivevents 36 and to facilitate exhausting through the ventilation opening 40as powered by the ventilation fan 38, particularly, when the side airvents 28 are not covered by the air vent covers 30 thereby facilitatingflow of hydrogen from the interior of the trailer housing 10 along theflow lines 92. As such, the present invention provides a uniqueapparatus for facilitating the providing of electrical power at remotelocations in a mobile power supply apparatus housed within an interiorchamber 48 of a trailer 10 wherein all aspects of safety have beendirectly addressed. An electrical receptacle box 98 is mounted in thetrailer wall to and is operatively electrical connected to the batterybanks 34 and battery chargers 60 to allow electrical power to flowthereinto or therefrom as needed.

While particular embodiments of this invention have been shown in thedrawings and described above, it will be apparent that many changes maybe made in the form, arrangement and positioning of the various elementsof the combination. In consideration thereof, it should be understoodthat preferred embodiments of this invention disclosed herein areintended to be illustrative only and not intended to limit the scope ofthe invention.

I claim:
 1. A mobile power supply trailer apparatus attachable to apowered vehicle to facilitate transport thereof comprising: A. a trailerchassis assembly including: (1) a trailer frame (2) a trailer hitchassembly mounted to said trailer frame and adapted to be attached to apowered vehicle for facilitating transporting thereof; (3) a pluralityof wheels movably mounted to said trailer frame and extending therebelowto facilitate transporting thereof; B. a trailer housing including: (1)a trailer floor mounted on said trailer frame; (2) a plurality oftrailer walls extending generally upwardly from said trailer floor, saidtrailer walls defining a trailer door opening therein; (3) a trailerroof extending between said trailer walls at a position above saidtrailer floor to define an interior chamber therebetween and betweensaid trailer walls and defining an uppermost chamber area within saidinterior chamber for facilitating gathering of hydrogen therein; (4) adoor assembly attached to said trailer walls and selectivelypositionable in a closed position extending over and closing saidtrailer door opening and being movable to an opened position tofacilitate access to said interior chamber through said trailer dooropening; (5) a plurality of electrical power supplies mounted withinsaid interior chamber; (6) a permanent ventilation opening defined insaid trailer housing to facilitate movement of ambient air from anexternal ambient environment into said interior chamber; (7) at leastone passive vent located in said trailer roof to continuously allowfluid flow from within said interior chamber to the external ambientenvironment; (8) a hydrogen gas sensing device positioned within saidinterior chamber for sensing a concentration of hydrogen gas by volumewithin said interior chamber, said hydrogen gas sensing device beingoperable to generate an emergency exhausting signal responsive tosensing a predetermined concentration level of hydrogen within saidinterior chamber; (9) a hydrogen gas ventilation assembly forselectively exhausting of hydrogen gases from said interior chamber intothe external ambient environment, said hydrogen gas ventilation assemblybeing responsive to receiving said emergency exhausting signal from saidhydrogen gas sensing device to activate and exhaust hydrogen gases fromsaid interior chamber into the external ambient environment; and (10) atleast one charging status display and control panel electricallyconnected to said electrical power supplies for monitoring status andcontrolling operations thereof, said charging status display panelsbeing mounted in said trailer walls and being viewable and controllablefrom outside of said trailer walls.
 2. A mobile power supply trailerapparatus attachable to a powered vehicle to facilitate transportthereof as defined in claim 1 wherein said hydrogen gas sensing deviceis operable to generate an emergency alarm generating signal responsiveto at least a first predetermined concentration level of hydrogen gasbeing sensed within said interior chamber and wherein said apparatusfurther includes an alarm device which is operatively connected to saidhydrogen gas sensing device to be responsive to sensing of the emergencyalarm generating signal to generate an alarm.
 3. A mobile power supplytrailer apparatus attachable to a powered vehicle to facilitatetransport thereof as defined in claim 2 wherein said hydrogen gassensing device is operative to generate an emergency alarm generatingsignal responsive to sensing a first predetermine hydrogen gasconcentration level of at least one percent by volume being presentwithin said interior chamber.
 4. A mobile power supply trailer apparatusattachable to a powered vehicle to facilitate transport thereof asdefined in claim 3 wherein said hydrogen gas sensing device is operativeto generate an emergency exhausting signal responsive to sensing atleast a second predetermined concentration level of hydrogen gas, saidsecond predetermined concentration level of hydrogen gas being a greaterconcentration by volume than said first predetermined concentrationlevel of hydrogen gas.
 5. A mobile power supply trailer apparatusattachable to a powered vehicle to facilitate transport thereof asdefined in claim 2 wherein said alarm is audible.
 6. A mobile powersupply trailer apparatus attachable to a powered vehicle to facilitatetransport thereof as defined in claim 2 wherein said alarm is visual. 7.A mobile power supply trailer apparatus attachable to a powered vehicleto facilitate transport thereof as defined in claim 1 wherein saidhydrogen gas sensing device is operative to generate an emergencyexhausting signal responsive to sensing a second predetermined hydrogengas concentration level of two percent by volume.
 8. A mobile powersupply trailer apparatus attachable to a powered vehicle to facilitatetransport thereof as defined in claim 1 wherein said plurality oftrailer walls includes: A. a front wall positioned adjacent said trailerhitch assembly and extending upwardly from said trailer floor; B. a leftside wall extending rearwardly from said front wall and extendingupwardly from said trailer floor; C. a right side wall extendingupwardly from said trailer floor and extending rearwardly from saidfront wall at a position spatially disposed from said left side wall;and D. a rear wall assembly extending upwardly from said trailer floorand extending between said left side wall and said right side wall.
 9. Amobile power supply trailer apparatus attachable to a powered vehicle tofacilitate transport thereof as defined in claim 8 wherein saidpermanent ventilation opening is positioned in said trailer housing at aposition extending through said front wall to facilitate a flow ofambient air therethrough into said interior chamber during transportinglocomotion of said trailer apparatus as it moves through the externalambient environment.
 10. A mobile power supply trailer apparatusattachable to a powered vehicle to facilitate transport thereof asdefined in claim 8 wherein said trailer housing includes an interiorceiling assembly positioned extending below said trailer roof tofacilitate gathering of hydrogen gas therein, said interior ceilingassembly being positioned immediately adjacent and above said uppermostchamber area, said hydrogen gas sensing device being positioned adjacentsaid uppermost chamber area immediately adjacent said interior ceilingassembly.
 11. A mobile power supply trailer apparatus attachable to apowered vehicle to facilitate transport thereof as defined in claim 10wherein said interior ceiling assembly includes: A. a lower leftinterior ceiling panel extending upwardly and inwardly from said leftside wall to facilitate guiding of hydrogen gas to move upwardly withinsaid uppermost chamber area; B. an upper left interior ceiling panelextending upwardly and inwardly with respect to said lower left interiorceiling panel to facilitate guiding of hydrogen gas to move furtherupwardly within said uppermost chamber area; C. a lower right interiorceiling panel extending upwardly and inwardly from said right side wallto facilitate guiding of hydrogen gas to move upwardly within saiduppermost chamber area; D. an upper right interior ceiling panelextending upwardly and inwardly with respect to said lower rightinterior ceiling panel to facilitate guiding of hydrogen gas to movefurther upwardly within said uppermost chamber area; and E. an upperflat interior ceiling panel extending approximately horizontally betweensaid upper left interior ceiling panel and said upper right interiorceiling panel, said hydrogen gas ventilation assembly being mounted toand extending through said upper flat interior ceiling panel and beingmounted to and extending through said trailer roof to facilitateexhausting of hydrogen gas outwardly therethrough responsive toactivation thereof.
 12. A mobile power supply trailer apparatusattachable to a powered vehicle to facilitate transport thereof asdefined in claim 1 wherein said passive vent comprises a snorkel-shapedpassive vent to minimize a flow of unwanted contaminants therethrough.13. A mobile power supply trailer apparatus attachable to a poweredvehicle to facilitate transport thereof as defined in claim 1 whereinsaid trailer roof defines a ventilation opening therein and wherein saidhydrogen gas ventilation assembly comprises: A. a ventilation housingmounted within said ventilation opening defined in said trailer roof toextend vertically through said trailer roof for allowing exhausting ofhydrogen gas therethrough; and B. a ventilation fan mounting within saidventilation housing and being operative to exhaust hydrogen gasoutwardly from said uppermost chamber area to the external ambientenvironment.
 14. A mobile power supply trailer apparatus attachable to apowered vehicle to facilitate transport thereof as defined in claim 1wherein said hydrogen gas sensing device is mounted within said trailerhousing adjacent said uppermost chamber area to facilitate sensing ofhydrogen gas.
 15. A mobile power supply trailer apparatus attachable toa powered vehicle to facilitate transport thereof as defined in claim 1further comprising at least one electrical receptacle box mounted insaid trailer walls of said trailer housing for facilitating distributingelectrical power outwardly therefrom and inwardly thereto.
 16. A mobilepower supply trailer apparatus attachable to a powered vehicle tofacilitate transport thereof as defined in claim 1 further comprising aan gas powered electrical power generator mounted on said trailerchassis for providing emergency electrical power when needed.
 17. Amobile power supply trailer apparatus attachable to a powered vehicle tofacilitate transport thereof as defined in claim 16 further including agenerator housing mounted to said trailer chassis at a location betweensaid trailer housing and the said trailer hitch assembly, said gaspowered electrical power generator being mounted within said generatorhousing.
 18. A mobile power supply trailer apparatus attachable to apowered vehicle to facilitate transport thereof as defined in claim 1wherein said trailer walls further define at least one supplemental airvent therein to provide enhanced air flow as needed.
 19. A mobile powersupply trailer apparatus attachable to a powered vehicle to facilitatetransport thereof as defined in claim 18 further comprising an air ventcover for each supplemental air vent and positioned thereadjacent whichis movable between a closed position extending over and closing anadjacent supplemental air vent and an opened position spatially disposedfrom said supplemental air vent to allow air flow therethrough.
 20. Amobile power supply trailer apparatus attachable to a powered vehicle tofacilitate transport thereof as defined in claim 1 further comprising amanual ceiling fan control switch.